# bcRPN vs DK WiFi Survey

The clearest difference is in-app purchases: bcRPN at none against DK WiFi Survey's 1. bcRPN also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). DK WiFi Survey's advantage is update cadence (weekly vs every 22 months). On price and ads there is nothing between them.

Both are free to download. DK WiFi Survey sells 1 one-off in-app purchase. bcRPN asks for nothing beyond the download.

bcRPN ships an update every 22 months, DK WiFi Survey weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | bcRPN | DK WiFi Survey |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (8 ratings)](https://appshunter.io/ios/app/bcrpn/id1614744829/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 22 months | **Weekly** |
| Monetization | Free | — |
| Size | 0 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Paul Wilkins](https://appshunter.io/developer/1614739840) | [TADAYUKI TOKUDA](https://appshunter.io/developer/6823797947) |

## What reviewers say

### bcRPN

[App page](https://appshunter.io/ios/app/bcrpn/id1614744829)

This utility app functions as a Reverse Polish Notation calculator. It handles complex numbers and utilizes extended precision for all calculations, offering an unlimited stack depth and an undo feature for up to 10 operations.

**Highlights:** Reverse Polish Notation (RPN) input, Complex number calculations, Extended precision math, Unlimited stack depth, Undo functionality (up to 10 operations)

**Features:** macOS Compatibility

**In-app purchases:** none


### DK WiFi Survey

[App page](https://appshunter.io/ios/app/dk-wifi-survey/id6823797945)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DK WiFi Survey Pro | $3.99 | one-time |


## Frequently asked questions

### Is bcRPN free?

bcRPN is free to download, with no in-app purchases.

### Is DK WiFi Survey free?

DK WiFi Survey is free to download, with in-app purchases available.

### Do bcRPN or DK WiFi Survey have ads?

Neither bcRPN nor DK WiFi Survey shows ads.

### Which is updated more often, bcRPN or DK WiFi Survey?

bcRPN ships an update every 22 months, and DK WiFi Survey weekly. Most recently, bcRPN was updated on November 3, 2026 and DK WiFi Survey on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*